Fire-extinguishing apparatus for aircraft



, 1,634,977 July 1927' 5. w. BURKE, JR

FIRE EXTINGUISHING APPARATUS FOR AIRCRAFT Filed July 1 2, 1924 IN VENTORGeoxg'a W5 urlie-cln v e01valvef17 operated by the trigger 14 PatentedJuly 5,1927.

' [UNITED swi s PATENT OFFICE.

(moron w. B'U'RKELJ'R, or mirror, cam.

IIBE-EZTINGUISEING APPARATUS FOR AIRCRAFT.

application filed July 12, 1824. Serial No. 725,595. I

This invention relates to fire extinguishing apparatus particularlydesigned and intended for use'on aircraft,

The object of the invention is to provide .5 an improved holder forportable fire extin-- guishers, especiall those of the pistol type,

for. securely and emountably carrying the same on the outside ofianairplane fuselage without danger of loss in flight or when 10 takingofl' and landing, no matter in what position or where extinguisher ismfi n d The fore oing and other objects relating to details constructionarebrought out in the course of the following detailed description, inwhich reference is made to the accompanying drawings wherein j Fig. 1 isa side view of a pistol type portable fire extinguisherdemountablycarried 29 in a holder. constructed in accordance with theinvention and connected detachably with the receiving end of the fireextinguishing system of the plane, as contemplated by the invention. a

Fig. 2 is a front view of Fig. 1.

Fig. 3 is an enlar ed elevational detail of the means for provi mg adetachable connection between the extinguishing system and the portableextinguisher, and

ap lication oftthe' system to an airplane.

a e portable fire extinguisher utilized as a part of the n hereincontemplated is of the pistol grip .t the detailsof conpartly embracethe cylindrica Fig. 4 is a diagrammatic view showing-the as struction ofwhich are escribed and claimed fully in applicants previous application,Ser. #688,480, filed Jan..25, 1924. Briefly, the extinguisher com risesa barrelll of a cylindrical form re erably, mounted on a' pistol gri .12and aving a discharge nozzle 13 throng which extinguishing fluid isexpelled under when the trigger 14 is depressed. pon de ression of t etrig- 'ger, a cartridge within t e breech 15 contain- 45 ing acompressed gas, is fru tuned, and su extinguishing fluid from the barrel11 through the nozzle 13.- A hollow stem 16 joins the nozzle 13 with.the barrel 11 anda the flow of fluid from the nozz e 13..

- The extinguisher, when removed from the fire originates on either ofthe wings or'at any point on the fuselage or tail. Where a fireoriginates in aconcealed ortion of the plane, as for example, beneat thecowling 19,- extinguishing fluid is sprayed on it from 60 nozzles 20 atthe discharge end of a conduit 21 having its --receiving end adjacentthe holder 18- and detachably connected with the nozzle of theextinguisher. The conduit 21 is coupled at 22 with a connection 23supported in a bracket 24 secured to a convenlent ortion 25 of theairplane fuselage on whic the holder 18 is also mounted. The bracket 24is provided with a cam faced projection 26 which is arranged to engagethe rear side of the stem 16 on the extingusher to cause the nozzle 13to engage wedgingly :with a gasketed portion 27 on the end of theconmotion 23 toprovide a fluid andrpressure tight joint.

The hotder 18 is in the form of a bracket having two open-sided parallelapproximately semi-circular spring cli s 28-which barrel 11 when theextinguisher is carried in the holder. A pair of wire links 29 of asubstantially U -sha e are pivoted at 30 at the same end of e'ac of theclips 28 and bridge the gapssbetween the ends of the clips at pointslongitudinally spaced on the barrel 11 on op osite sides of the pistolgrip extending latera ly' from the barrel 11. A bar 31 ex tending lonitudinally of the barrel 11 is slidable on t e links 29 toward theoutwardly bent portions 32 on the clips 28 underthe action of springs 33acting between the ends of the bar 31 and plates 34 secured to the endsof the links 29. A pair of end clips 35 confine the' barrel 11 againstendwise movement. With this arrangement, the extinguisher is securelyheld against loss in flight or when taking 011 and landing, no matter inwhat gosition or where the extinguisher is carrie When it is desired tore- .move the extinguisher .for refilling, or in pl es the pressuremedium or expelling t e controls tinguisher from the holder. lhe camprojection 26 engages behind the stem 16 and makes a proper fluid-tightjoint between the extinguisher and the conduit 21 as the extinguisher isplaced in the holder. It has beeafound desirable to enable the pilot,after pulling the trigger 14, to initiate the discharge of theextinguisher, to pay no further attention to the matter of dischargingthe extinguishing fluid into the system through the conduit 21, but toresume full control of the plane, in an efi'ort to make a safe landing,if that is desired For this purpose, a latch 36 pivoted at 3? above thetrigger 14 is provided to drop down and engage in front of the trigger14 under the action preferably. of a 1i ht spring 38 and lock the triger in the otted line position indicated with the valve 17, in openposition. The latch 36 has a lateral projection 39 which can be engagedand moved by the finger in operating the trigger 14 so that the triggercan be unlocked at will.

From the foregoing description, it will be apparent that I have provideda system of a unique character capable of combating fire originating atany point on the plane and from any cause. The portable extin isherforming a part of the system is quic ly removable to extinguish firesother than those which the system itself is arranged to have undercontrol and the extinguisher is available for fires other than thosearising on the plane itself so that the device could be used in theevent of a fire breaking out in the hangar. The holder which securelyand demountably carries the extinguisher usually on the outside of thefuselage ad'acent the cockpit, is particularly adapted or use inconnection with the system described, but may be used apart from asystem on planes not provided with such an installation.

I claim:

1. A holder for an article hav' a lateral projection, comprising anopen-di fmd clip to embrace the article, a bar hingedly connected with8. prong of thb clip lying in the path of movement of said projection onsaid articlewhen the latter is rotated in the clip to be moved by saidrejection and afford egress for said article rom said clip.

2. A holder for an article havin a lateral projection, comprising anopen-si ed clip to partly embrace the article and having a. closure tocomplete the embrace of the article, rotation of said article in saidclip causing said projection to open the clip and permit the removal ofthe article therefrom.

3. A holder for a pistol gripfire extinguisher, comprising open-sidedclips to emrace' the barrel of said extinguisher at points 5 seedlengthwise thereof, a her extending engthwise of the barrel as it isheld in the clips hingedly connected by links at teasers bar beingyieldably held at each end by the free end of each of said clips to beswung 1 .free and out of the way by engagement of the pistol grip onsaid extinguisher in the turning thereof in the clips to permit theremoval of aid extinguisher.

i. A holder for a pistol grip fire extinguisher, comprising a bracket, apair of and members thereon to confine, the ends of the barrel of saidextinguisher, a pair of parallel open-sided clips to partly embrace thebarrel from the side at points spaced lengthwise thereof, a barextending lengthwise of the barrel as it is held in the clips connectedat the ends with the same end of each of said clips on the same side ofthe barrel, said bar being movable by engagement of the pistol grip onsaid extinguisher in the turning thereof in the clips to permit theremoval of said extin isher.

5. A holder for a pistol grip fire extinguisher, comprising a bracket,9. pair of end clips thereon to confine the ends of the barrel of saidextinguisher, a pair of open sided circular clips to snap over and pabrace said barrel from the side at mts spaced lon 'tudinally thereofpair 0 links bridging t e gaps between the ends of the clips pivotallyconnected to the same end of each of said clips on one side of thebarrel, said clips having the opposite ends on the other side of thebarrel bent outwardly to form abutments, a bar mounted on said links andheld under the action of springs on said links behind said abutments andextending longitudinally of the barrel and m the path of movement of thepistol gri thereon to be moved in the movement of t clatter when saidextinguisher is turned in the holder.

6. A holder for a pistol grip fire extinuisher, comprising open sidedclips to emrace the barrel of said extinguisher at points spacedlengthwise thereon, a conducting pi e fixed to said holder, and meansarrange to secure a wedging engagement of the extinguisher outlet andsaid pipe in the movement of the extinguisher about its longitudinalaxis in mounting the extinguisher in said holder.

rtly em- 7. A holder for a pistol grip fire extinpoints spacedlengthwise thereon, a conducting pipe fixed to said holder, and meansarranged to secure a wedging engagement of the extinguisher outlet andsaid p1 in the movement of the extinguisher :1 out its longitudinal axisin mounting the extin guisher in said holder, comprising a cam membermounted on said holder and a. part on said extinguisher engageabletherewith.-

8. A holder for a pistol grip fire extinguisher, comprising open sidedclips to emextinguisher by engagement of a pistol grip brace the barrelof said extinguisher at thereof in the turning movement of the expointsspaced lengthwise thereon, a bar extinguisher in the'clips about thelongitudinal tending lengthwise of the barrel as it is held axis of theextinguisher to permit the re- 5 in the clips and resiliently connectedat its moval of said extinguisher.

ends to the clips, said bar being mounted to In testimony whereof Iaflix my signature. be swung free and out of the way of the GEORGE W.BURKE, JR.

